LAN8740A中文资料10/100 Base-T/TX Ethernet Transceiver with Power Saving Features and Cable Diagnostics数据手册Microchip规格书

描述 Description

Microchip's LAN8740A/LAN8740Ai are the latest generation of low-power, 10/100 Fast Ethernet PHYs featuring Energy Efficient Ethernet (IEEE 802.3az) and Wake-On-LAN functionality, which provide system sleep modes for improved power savings. The LAN8740A/LAN8740Ai feature deterministic loop back delay, assuring real-time system performance as well as cable diagnostics which reduce network installation costs. These devices are available in both commercial (0° to 70°C) and industrial (-40° to 85°C) temperature ranges. The LAN8740A/LAN8740Ai are well-suited for Consumer, Embedded and Industrial applications. Additionally, these devices support auto-negotiation, auto-polarity correction, HP Auto-MDIX† and are compliant with IEEE 802.3 and 802.3u standards. Microchip also offers its complimentary and confidential LANCheck® online design review services free of charge to customers who select our products for their application design-in.*

†HP Auto-MDIX eliminates the need for special \"crossover\" cables when connecting LAN devices together.

特性 Features

Highlights
• Single-Chip Ethernet PHY
• Comprehensive flexPWR® technology
• Flexible power management architecture
• LVCMOS variable I/O voltage range +1.6V to +3.6V
• Integrated 1.2V regulator with disable feature
• Energy Efficient Ethernet (IEEE 802.3az)
• Cable diagnostics
• Deterministic latency
• Uses a low-cost 25MHz crystal for RMII mode to drive 50MHz output
• Wake-On-LAN
• HP Auto-MDIX support
• Supports commercial (0° to 70°C) and industrial (-40° to 85°C) temperature ranges
• 32-pin, 5x5mm SQFN, RoHS-compliant packages
Target Applications
• Set-top Boxes
• DVRs/PVRs
• Digital TVs/iPTVs
• Printers
• IP and Video Phones
• Industrial Networks
• Embedded/Telecom
• Test/Measurement Instrumentation
• Wireless Access Points
• Power over Ethernet (PoE)

应用 Application

·Set-top Boxes
·DVRs/PVRs
·Digital TVs/iPTVs
·Printers
·IP and Video Phones
·Industrial Networks
·Embedded/Telecom
·Test/Measurement Instrumentation
·Wireless Access Points
·Power over Ethernet (PoE)

简介

LAN8740A属于集成电路（IC）的驱动器接收器收发器。由Microchip制造生产的LAN8740A驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。